diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69179ca..520588c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,12 +14,12 @@ on:
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   lint:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
-          python-version: '3.9'
+          python-version: '3.10'
 
     - name: Install dependencies
       run: |
@@ -38,30 +38,27 @@ jobs:
         mypy src/ po/
 
   meson-build-test:
-    runs-on: ubuntu-24.04
-    # container:
-    #   # Use Ubuntu 23.04 in order to have appstreamcli v0.16 instead of 0.15.
-    #   image: ubuntu:23.04
+    runs-on: ubuntu-26.04
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
-          python-version: '3.9'
+          python-version: '3.10'
     - run: sudo apt-get update && sudo apt-get -y install libglib2.0-dev-bin meson appstream desktop-file-utils gettext
     - run: meson setup build
     - run: meson compile -C build
     - run: meson test --print-errorlogs -C build
 
   flatpak-build-test:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     container:
       image: ghcr.io/flathub-infra/flatpak-github-actions:gnome-48
       options: --privileged
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
+    - uses: actions/checkout@v6
+    - uses: actions/setup-python@v6
       with:
-          python-version: '3.9'
+          python-version: '3.10'
     - uses: flatpak/flatpak-github-actions/flatpak-builder@v6
       with:
         bundle: "diffuse.flatpak"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 618140c..480b89c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Update release process documentation (@MightyCreak)
 
+### Fixed
+
+- fix(cicd): update Github CI/CD script (@MightyCreak)
+
 ## [0.10.0] - 2025-05-24
 
 ### Changed